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UNITED STATES AT i OFFIO.

GEORGE W. PRUYNE, OF MEXICO, NENV' YORK.

MACHINE FOR RAISING AND CREASING LEATHER STR-APS, &c.

Specification of Letters Patent No. 14,698, dated April 15, 1856.

To all whom t may concern.'

Be it known that I, GEORGE IV. PRUYNE, of Mexico, in the county ofOswego and State of New York, have invented certain new and usefulImprovements in Machines for Raising and Creasing Leather; and I dohereby declare the following to be a full, clear, and exact descriptionof the same, reference being had to the accompanying drawings, making apart thereof, in which- Figure 1, represents a perspective view. Fig. 2,represents a central longitudinal and vertical section through themachine, and Fig. 3 represents the raising and creasing rollersdetached.

Similar letters where they occur in the separate figures, denote likeparts.

The nature of my invention relates more particularly to theconstruction, location, and combination of the guides with the rolls, soas to direct the strap or other thing drawn through between them, andthus prevent the possibility of its becoming skewed i in the grooves.

To enable others skilled in the art to make and use my invention, I willproceed to describe the same with reference to the drawings.

A, represents a table, upon which are raised the pillar blocks B, whichsupport the several operative parts of the machine. In suitable boxes insaid pillar blocks, the journals of the upper, or concave grooved rollerO, rest and rotate. The pillar blocks, besides being secured to thetable at their base, are tied by the through rods D, E.

F, is a yoke-shaped, or forked lever, the two arms of which, have scoresa, a, on their under sides which fit over the lower through rod E-saidrod being the fulcrum of the lever F. On the rear end of the two forks(F, F,) of the lever F, are supported the journals, of the lower roll G,whose grooves are in reverse to those of the upper roll C, or so thattheir opposite surfaces shall be parallel to each other as seen in Fig.3,) and the Yspace between them shows the outline of the shape or formof the strap after it is drawn through between them.

H, represents a plate, secured to the pillar blocks, of the length ofthe rolls, and located near to the point of impact of the two rolls.Upon this plate are formed a 1 series of guides b, ZJ, I),whichcorrespond in width, with the distance between the collars orflanges c, on one roll, and the corresponding recesses Z on the other.These guides are covered at top, so as to make .four sided boxes, and sothat the strap, after 1t is creased by the rolls, and passes into itsspecial guide, shall not skew or twist in the groove, and make irregularwork. A guide before the rolls does not serve the purpose, inasmuch asit there becomes a directrix to the creased strap as it leaves therolls, but 1t would not counteract any tendency of the raised andcreased end of the strap (which `1s the most important object), to skew.By placing the guides in rear of the rolls, and passing the strapthrough as shown by the arrows in Fig. 2, they become a directrix to thefinished work, and being so close to the rolls, the operator may takethe end of the strap in his hand, and draw it through without the leastfear of its skewing, or irregular raising and creasing.

In the front end of the lever F, is a stirrup I, which conects it withspring J hung to the underside of the table at K-the power of saidspring J, being adjustable through a nut and screw, on the stirrup rodI. l

L, is a rock shaft supported on the underside of the table, and having alever M, connected to one of its ends, and projecting up so as to beconveniently reached by t-he operator. On the rock shaft L, is a toe N,which strikes against the upper leaf of the spring piece J, and inforcing down said spring piece it throws up the roll G, against that C,through the stirrup rod I, and lever F. When the two rolls are thusthrown together, the friction of the toe N, on the spring piece willhold them together, while the spring will allow them to yield to anyirregularity in the thickness of the strap, as it passes through. Bydrawing back the lever M, and disengaging the toe and spring J, anotherspring O, on to-p of the table, draws down the rollerGr, from the one C,so that the end of the strap may be readily introduced between them. Therolls may be of wood or metal, or parts of each-I use them one of metal,andthe other of wood. In entering the strap to be creased, so much ofit, as is necessary to furnish a hold for the operator, after it passesthe guides will not be creased, but when the end is drawn leather havebeen used; these I do not Claim, but

What I do claim as new and desire to secure by Letters Patent is- Incombination with the grooved rolls, one of which is yielding as hereinset forth, the guides b through which the creased partof t-he strap isdrawn substantially in the manner, and for the purpose set forth, and sothat said guides shall serve to direct the finished strap as it passesthrough between the rolls.

GEO. NV. PR'UYN E. l/Vitnesses THos. H. UPPERMAN, E. COHEN.

